Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a natural dye ? Alizarin Aniline blue Crystal violet Phenolphthalein Alizarin Aniline blue Crystal violet Phenolphthalein ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 6 –3 to + 3 –3 to + 4 –3 to + 5 –3 to + 6 –3 to + 3 –3 to + 4 –3 to + 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Baking soda is : Sodium hydroxide Potassium carbonate Sodium bicarbonate Sodium carbonate Sodium hydroxide Potassium carbonate Sodium bicarbonate Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicles which causes air pollution is Carbon Monoxide Ozone gas Carbon dioxide Methane Carbon Monoxide Ozone gas Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is not present in stainless steel? Tungsten Chromium Nickel Iron Tungsten Chromium Nickel Iron ANSWER DOWNLOAD EXAMIANS APP
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